Character recognition. There are two basic types of core OCR algorithm, which may produce a ranked list of candidate characters. Matrix matching involves comparing an image to a stored glyph on a pixel-by-pixel basis; it is also known as pattern matching, pattern recognition, or image correlation.
1 Liquid Fire, eight-piece rock band from Saint Joseph, Missouri. 2  A single from L'Enfant Sauvage, the fifth album by the French progressive death / groove metal band Gojira.
Carbon tetrachloride was suitable for liquid and electrical fires and the extinguishers were often carried on aircraft or motor vehicles. In the first half of the 20th century, another common fire extinguisher was a single-use, sealed glass globe known as a fire grenade, filled with either carbon tetrachloride or salt water. The bulb could be thrown at the base of the flames to quench the fire.